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瞬态信号的检测在信号处理研究中占有重要地位。本文在多尺度分解的基础上对含噪声信号进行尺度上和尺度间作两维自适应滤波，并采用逐级消除平均误差的方法对自适应滤波算法进行了改进，从而有效地滤去噪声，达到提取信号的目的。基于瞬态信号的特点，在滤波的方法上提出了反向滤波的方法。实践结果表明，该方法在信噪比较小时仍能取得较好的结果。
Transient signal detection plays an important role in signal processing research. Based on the multi-scale decomposition, the noise-free signal is two-dimensionally adaptively scaled and scaled, and the adaptive filtering algorithm is improved by eliminating the average error step by step so as to effectively filter out the noise and achieve The purpose of extracting signals. Based on the characteristics of transient signals, a method of reverse filtering is proposed in the filtering method. The practical results show that this method can still get better results when the signal to noise ratio is small.